So i now have my cousins iphone which is already jailbroken, but not unlocked. it was originally 3.1.2 and he downgraded it to 3.0 and then jbed it with redsn0w. the baseband is at 5.11.07. How would i go about unlocking it? I am reading about unlocking with blacksn0w, but i have a couple of questions. Do i have have to upgrade the firmware then re jb and then unlock? Are there any other solutions to unlocking?